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When searching for where to place air purifier covid, know that optimal placement can significantly improve indoor air quality and reduce the risk of COVID-19 transmission. Below is a quick guidance:

Key Placement Tips:
1. Place the air purifier in the patient’s room: Keep it within 3 feet of the infected person.
2. Avoid blocking airflow: Ensure the purifier is away from curtains and furniture.
3. Close the room’s door: To contain the air and ensure efficient purification.

Using a high-quality HEPA filter air purifier is an effective way to improve health and safety in your home, especially if someone is recovering from COVID-19. These devices trap 99.97% of airborne particles, including virus-sized particles, significantly reducing the chance of transmission to other household members.

Additionally, balanced with good ventilation and following a few practical placement tips, air purifiers can create a safer indoor environment. This is particularly crucial as COVID-19 continues to affect our daily lives.

air purifier placement tips - where to place air purifier covid infographic pillar-3-steps

Understanding Air Purifiers and COVID-19

HEPA Effectiveness

HEPA filters are incredibly effective at capturing airborne particles. They can trap 99.97% of particles as small as 0.3 microns, which includes virus-sized particles. This makes them an excellent choice for reducing airborne transmission of COVID-19.

Pro Tip: Look for air purifiers specifically labeled as HEPA-grade to ensure maximum efficiency.

Airborne Transmission

COVID-19 primarily spreads through respiratory droplets and aerosols. When an infected person talks, coughs, or sneezes, tiny virus-laden particles are released into the air. These particles can linger in the air for hours, increasing the risk of transmission, especially in enclosed spaces.

Studies have shown that using HEPA air purifiers can significantly reduce the concentration of these airborne particles. For instance, a study by the University of Minnesota found that placing a HEPA air purifier directly in front of a person expelling aerosols could dramatically reduce the spread of virus particles in a room.

Virus-Laden Aerosols

Understanding how virus-laden aerosols behave is crucial for effective air purifier placement. Aerosols can travel through the air and settle on surfaces, posing a risk of indirect transmission.

Simulations have demonstrated that strategic placement of HEPA air purifiers can capture these aerosols before they spread. For example, a simulation in a music classroom showed that placing the air purifier in front of the person or instrument expelling aerosols, and away from others, reduced the spread of virus particles significantly.

Case Study: In a hospital COVID-19 ward, portable HEPA/UV air filters were found to completely eliminate airborne SARS-CoV-2, as well as reduce other bioaerosols, showcasing their effectiveness in high-risk environments.

By understanding the role of HEPA filters, the nature of airborne transmission, and the behavior of virus-laden aerosols, you can better utilize air purifiers to create a safer indoor environment.

This sets the stage for exploring optimal placement strategies to maximize the efficiency of air purifiers, which we’ll delve into next.

Optimal Placement for Maximum Efficiency

Distance from Walls

To ensure your air purifier works efficiently, it’s crucial to keep it away from walls and obstructions. Placing it at least 6 inches away from any wall or large furniture ensures that the intake and exhaust fans can operate without any hindrance.

Obstructed fans can’t circulate air properly, reducing the purifier’s effectiveness. Imagine trying to breathe through a straw with a finger over the end—that’s what your air purifier feels like when it’s too close to a wall.

Near Pollution Sources

Positioning your air purifier near known pollution sources can be very effective. For example, if you have pets, placing the purifier near their sleeping area can help capture pet dander before it spreads throughout the room. Similarly, placing it near the kitchen can help tackle cooking odors and smoke more efficiently.

Dr. Stephanie Taylor from Building4Health emphasizes, “You need to bring in more outdoor air to dilute those indoor pollutants.” But in lieu of outdoor air, placing air purifiers near pollution sources is the next best thing.

Height Considerations

Elevating your air purifier 3-5 feet off the ground can significantly improve its performance. Airborne contaminants often float at this height, making it easier for the purifier to capture them. You can use a table or a sturdy stand to elevate the unit, especially in bedrooms where you want clean air at your breathing level.

Think of it like beating an egg in a bowl: if you only stir at the bottom, you miss a lot of the egg. Elevating the purifier ensures it captures more of the airborne particles.

air purifier on table - where to place air purifier covid

Real-World Example

In a classroom setting, placing an air purifier in the center of the room and another near the teacher’s desk can maximize air filtration. This setup helps ensure that air from all corners of the room gets cleaned, reducing the risk of virus transmission among students and teachers.

According to ASHRAE’s guidelines, “Placing your air purifier in a central location within the room can be highly effective. This allows the purifier to evenly distribute clean air across the entire space.”

By following these simple placement tips, you can enhance the performance of your air purifier, making your indoor environment safer and healthier.

Next, we’ll discuss how to balance ventilation and air purification to further improve air quality.

Balancing Ventilation and Air Purification

Balancing ventilation and air purification is crucial for maintaining a healthy indoor environment, especially during the COVID-19 pandemic. Here’s how you can do it effectively:

Window Ventilation

Opening windows is one of the simplest ways to bring fresh air into your home. Dr. Bahnfleth from Penn State University suggests opening windows every morning to replace stale indoor air with fresh outdoor air.

Tips for Effective Window Ventilation:
– Open windows on opposite sides of the room to create cross-ventilation.
– Use a fan to blow air out of one window, creating a DIY exhaust system. This helps remove contaminated air more efficiently.
– Be cautious if the outdoor air is polluted or if you have allergies. In such cases, relying solely on window ventilation may not be ideal.

HVAC Systems

If you have a central HVAC system, upgrading your filters can make a significant difference. According to the EPA, using filters rated MERV 13 or higher can capture smaller particles, including viruses.

Key Points for HVAC Systems:
Upgrade Filters: Use filters with a MERV 13 rating or higher for better air filtration.
Professional Consultation: Consult an HVAC professional to ensure your system can handle higher-efficiency filters.
Regular Maintenance: Change filters regularly to maintain optimal performance.

Air Exchange Rate

The air exchange rate refers to how frequently the air within a space is replaced with fresh air. A higher air exchange rate means cleaner air, which is crucial for reducing the risk of airborne transmission of viruses like COVID-19.

How to Improve Air Exchange Rate:
Combine Methods: Use both ventilation (open windows) and air purifiers to maximize air exchange.
Portable Air Purifiers: Place them strategically to enhance air circulation within the room.
Breaks Between Uses: In settings like classrooms, allow breaks between sessions to let air purifiers clean the room. According to research from the University of Minnesota, 25 minutes is usually sufficient.

By balancing ventilation and air purification, you can significantly improve indoor air quality, making your home safer and healthier during the COVID-19 pandemic.

Next, we’ll explore strategic placement of air purifiers in specific settings like homes, schools, and healthcare environments.

Strategic Placement in Specific Settings

Home Environment

Living Room: Place your air purifier in the center of the room to ensure even air distribution. Avoid placing it next to walls or behind furniture, as this can block airflow. If possible, position it near seating areas where people spend most of their time.

Bedroom: In the bedroom, place the air purifier close to the bed but not directly facing it to avoid direct airflow. Keep it away from curtains and wardrobes to ensure unobstructed air intake and exhaust. Consider using a unit with a ‘sleep’ setting to minimize noise.

Vulnerable Individuals: For those with compromised immune systems or chronic illnesses, place the air purifier in the room where they spend most of their time. Ensure the device is within 3 feet of the individual to maximize the filtration of airborne particles. Keep the door closed to contain purified air within the room.

Educational Institutions

Classrooms: Position air purifiers in the center of the room, elevated off the ground, to maximize air circulation. If the classroom is large, use two purifiers—one in the center and another near the teacher’s desk. This setup helps ensure that clean air reaches all corners of the room. Source

Music Rooms: Place the air purifier directly in front of the person or instrument expelling aerosols. This helps capture airborne particles immediately as they are released. Ensure the device is away from other individuals to protect them from exposure. Source

Common Areas: In areas like hallways and cafeterias, position air purifiers near high-traffic zones. This helps filter the air where people gather and move around the most. Ensure there are no obstructions to airflow.

Healthcare Settings

Patient Rooms: Place the air purifier in the patient’s room, ideally within 3 feet of the patient. Keep the device running 24/7 on at least medium speed to continuously filter the air. Ensure the purifier is away from curtains and furniture to maintain optimal airflow. Source

Waiting Areas: Position air purifiers in the center of the waiting area to ensure even distribution of clean air. Place them away from walls and corners to avoid obstructed airflow. This setup helps reduce the risk of airborne transmission among waiting patients.

Treatment Rooms: In treatment rooms, place the air purifier near the treatment area but not directly in the path of medical equipment. Ensure the device is elevated and unobstructed to maximize its effectiveness. This helps protect both patients and healthcare workers from airborne pathogens.

By strategically placing air purifiers in these specific settings, you can significantly reduce the risk of COVID-19 transmission and improve overall air quality.

Next, let’s address some frequently asked questions about air purifiers and COVID-19.

Frequently Asked Questions about Air Purifiers and COVID-19

Can air purifiers eliminate COVID-19 from the air?

Air purifiers, especially those with HEPA filters, are highly effective at capturing airborne particles, including virus-laden aerosols. HEPA filters can trap particles as small as 0.3 microns with 99.97% efficiency. While they don’t “eliminate” COVID-19, they significantly reduce the concentration of airborne viruses, lowering the risk of transmission.

According to a study published in The Journal of Infectious Diseases, combining a fit-tested N95 mask with a HEPA air purifier in a healthcare setting could nearly eliminate the risk of infection. This shows that air purifiers can be a powerful tool in reducing airborne virus spread when used correctly.

How often should air purifiers be operated for maximum effectiveness?

For maximum effectiveness, it’s recommended to run air purifiers 24/7, especially in rooms with a high risk of virus transmission. Operating at least on medium speed ensures continuous air filtration, capturing as many particles as possible.

Pro Tip: Place the air purifier close to the patient (within 3 feet) and away from obstructions like curtains or furniture. This placement helps maximize airflow and filtration efficiency.

What is the role of HEPA filters in combating COVID-19?

HEPA filters are crucial in combating COVID-19 because of their high efficiency in trapping airborne particles. They can capture particles much smaller than the coronavirus, which is around 0.1 microns in size. This makes them incredibly effective at reducing airborne virus concentrations.

Important Note: When changing HEPA filters, wear gloves and a mask to minimize the risk of exposure to trapped viruses. Dispose of used filters in a sealed bag and wash any fabric pre-filters with disinfectant.

By understanding and utilizing HEPA filters and air purifiers effectively, you can create a safer indoor environment and reduce the risk of COVID-19 transmission.


Placing air purifiers correctly can make a huge difference in reducing COVID-19 transmission. Here are some air purifier placement tips to ensure you get the most out of your device:

  • Distance from Walls: Place the air purifier at least 6 inches away from walls and furniture to avoid obstructing airflow.
  • Near Pollution Sources: Position the purifier close to the source of pollution, such as near the patient in a healthcare setting or near seating areas in living rooms.
  • Height Considerations: Elevate the purifier about 3 feet off the ground for better air circulation.
  • Central Location: In larger rooms, a central location can help distribute clean air more evenly.

Strategic Placement in Specific Settings:

  • Home Environment: In living rooms, place the purifier near seating areas. In bedrooms, position it near the bed but not directly facing it. For vulnerable individuals, ensure the purifier is in the room where they spend most of their time.
  • Educational Institutions: In classrooms, place purifiers centrally and away from obstructions. In music rooms, position them directly in front of instruments or people expelling aerosols.
  • Healthcare Settings: In patient rooms, place the purifier close to the patient. In waiting areas, position it centrally to cover a larger area.

These tips can help improve air quality and protect against airborne viruses like COVID-19.

For personalized recommendations and professional installation, Abaco Air Experts can help you create the perfect air quality in your home or workplace. Our team ensures you and your family breathe cleaner, healthier air.

By following these guidelines and seeking professional advice, you can make your indoor environment safer and healthier. Thank you for reading, and here’s to better air quality!